S.R. Gillis & Sons Ltd

16-1211 Gorham St, Newmarket, ON L3Y 8Y3

S.R. Gillis & Sons Ltd Heating and Air Conditioning - is a family owned and operated heating and air conditioning business that started in 1981. We became a Carrier dealer in 1983 and celebrated our 35th anniversary with Carrier in 2018. We install gas and electric furnaces, air conditioners, heat pumps, ductless splits, gas fireplaces, humidifiers, air cleaners, air purifiers and gas lines for stoves and barbecues - we fix any type of furnace! We are fully insured and Workplace Safety and Insurance Board compliant. If you are looking to replace your existing equipment, need service or just want advice, please give us a call or stop by our office on Gorham Street in Newmarket. Our friendly office staff will gladly answer any of your questions.

S.R. Gillis & Sons Ltd - 16-1211 Gorham St, Newmarket, ON

A family owned & operated Heating and Air Conditioning company since 1981, providing excellence in service and installations from the office staff to our licensed technicians.

Opening Hours

Monday 8:00 am - 5:00 pm

Tuesday 8:00 am - 5:00 pm

Wednesday 8:00 am - 5:00 pm

Thursday 8:00 am - 5:00 pm

Friday 8:00 am - 5:00 pm

Products and Services

  • Heating & Air Conditioning

Methods of Payment

  • Visa
  • MasterCard
  • Cash
  • Interac
  • Cheque

Languages Spoken

  • English

Brands Carried

  • Mitsubishi Electric


  • Products and/or Services
  • Furnaces And Air Conditioners
  • We Service All Makes:
  • Residential And Light Commercial